CN1035238C - Prilling apparatus with atomizing drying units - Google Patents
Prilling apparatus with atomizing drying units Download PDFInfo
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- CN1035238C CN1035238C CN92110117A CN92110117A CN1035238C CN 1035238 C CN1035238 C CN 1035238C CN 92110117 A CN92110117 A CN 92110117A CN 92110117 A CN92110117 A CN 92110117A CN 1035238 C CN1035238 C CN 1035238C
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- nozzle
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- pressurization
- stoste
- spray drying
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Abstract
The present invention relates to a spray drying granulation device. The upper part in a groove of the spray drying granulation device is provided with a spray drying part for hot air drying raw liquor supplied to a nozzle for spray. Meanwhile, the lower part in the groove is provided with a fluidized granulation part. The spray drying granulation device makes a pressurized two-fluid nozzle of a barrel-shaped body used as a spray nozzle for raw liquor supply. The pressurized two-fluid nozzle of the barrel-shaped body is arranged on the periphery of a pressurized rotary nozzle for high-speed gas blowout. Even raw liquor with large capacity can be sprayed and micronized by one nozzle of the spray drying granulation device. Besides, when the supply speed, the concentration, the viscosity, the variety, etc. of the raw liquor are greatly changed, inside parts of an original nozzle, such as small holes, iron cores, etc., need to be replaced, and the parts of the pressurized two-fluid nozzle of the spray drying granulation device do not need to be replaced because the diameter of liquid drops can be adjusted through the adjustment of high-speed airflow speed.
Description
The present invention relates to a kind of prilling apparatus with atomizing drying units that prilling granulator is installed in the inside of a groove.
In the past, the spray nozzle of prilling apparatus with atomizing drying units uses pressurization swivel nozzle 3 as shown in Figure 8, the device of use pressurization swivel nozzle for example shown in Figure 6, this nozzle is the part that is referred to as the additional strong eddy current of iron core, rotating room etc. in the installing of the front of aperture, make the granularity of spray droplet thinner, providing simultaneously with hot blast has the better open circles taper spray model that contacts; Also have use as shown in Figure 7 on pressurization swivel nozzle basis, partly installed the device (opening clear 62-20480 number) of bonding agent spray nozzle but it not have to use the spray nozzle that provides narrower spray angle and suitable size distribution at fluidized granulation again as Japanese Patent Application Publication communique spy.
Yet, usually in the spray-drying apparatus, during its running beginning, can be owing to the overheated goods that make burn, for the heat of giving subsequent handling with protection, the indoor temperature maintenance of spray-drying is stablized.Adopt same pressurization swivel nozzle to carry out atomized water spray for this purpose.
When carrying out such water spray, the amount of water spray must get with stoste in the suitable amount of moisture, generally, amount of moisture in the stoste is 30～80 percentage by weights, therefore the spray amount of water is set spray amount with 30～80% of stoste equally, since the characteristic of pressurization swivel nozzle, pressure also can liquid body viscosity etc. influence roughly be reduced to 10-70%.Thereby by the characteristic of pressurization swivel nozzle, because water droplet becomes and is difficult to behind the macroparticle dryly, also drying will be attached in the hothouse, thereby has got wall wet.At this moment, when continuing spraying stoste, dry powder will be attached on this part wall and solidify.
What therefore, adopted in the past is Figure 10 and method shown in Figure 11.
Figure 10 is the example that is provided with a plurality of pressurization swivel nozzle situations, and it is to install a plurality of pressurization swivel nozzles 25 on the indoor top of spray-drying, when carrying out water spray, by the low-pressure spraying is avoided in the control of number of pressurization swivel nozzle 25.
The example that the nozzle 26 former nozzle for liquid 27 that Figure 11 represents water spray is used are installed respectively.
On above-mentioned pressurization swivel nozzle 3 in the past, spreading of spray α such as Fig. 8 and shown in Figure 9, usually greatly to 40 °～90 °, during the spraying of pressurization swivel nozzle 3, the inboard 12 of spraying circular cone forms negative pressure, and extraneous gas 17 12 flows to the inside from outer peripheral edges side 16.By moving of this extraneous gas, trickle drop is pooled on inboard 12, and thick drop remains on the outer peripheral edges side 16, trickle drop is dried easily, and then difficulty is dry for thick drop, remain on the outside of spray model, as shown in Figure 9, because it has arrived on the bottom 18 of the still higher spray-drying part 1 of moisture, thereby on bottom 18, adhere to easily and pile up.Therefore, the yield rate of goods is reduced, and when making the relatively poor material of hear resistances such as food, pharmaceuticals, organic compound, can cause thermal metamorphism and quality is reduced.On the contrary, when for fear of adhering to, when making powder fully dry, because the moisture of powder is crossed low and can not be promoted granulation.
In addition, when the sort of pressurized nozzles of using in the past of additional not strong eddy current part in front of aperture, can make spreading of spray narrower, but because this makes drop too thick, almost not being dried just arrives fluidized granulation and partly carries out powdered, thereby problem such as fluidized bed occurs forming.
Fig. 6 is the simplified schematic diagram of an example of known prilling apparatus with atomizing drying units.When on the spray nozzle of this device, having used the pressurization swivel nozzle, on the spray-dired powder if do not stay surplus suitable moisture (3～15 percentage by weight degree) just can not promote granulation, but when staying remaining suitable moisture on the powder, the spreading of spray of nozzle will be bigger, therefore the thick drop that comes out from nozzle spray under the insufficient situation of drying just attached on the device internal face.
If the height of straight drum part 14 of device increases, can avoid just adhere to, but the granulation speed in the fluidized granulation layer will diminish, just need big fluidized bed.Especially to containing amino acid whose those materials, the moisture narrow range of energy granulation, running under the material occasion that the moisture scope that surpasses it is adhered to easily, select to avoid adhering in the device, the operating condition that granulation speed is increased is very difficult again.
Fig. 7 is the simplified schematic diagram of another example of known prilling apparatus with atomizing drying units.This device is in order to solve the attachment issue in the said apparatus.The height of straight drum part 14 has been increased, made that the amount of moisture of powder reduces, granulation speed diminishes.For this reason, also installed the two-fluid spray nozzle of granulation with bonding agent spraying usefulness.Can remove adhering in the device thus, but device becomes big, the space of setting also increases, owing to use the two-fluid spray nozzle of bonding agent spraying usefulness, thereby just need a large amount of compressed air.In addition, the problem that also has the construction cost raising of device.
In device shown in Figure 10 and since need widen nozzle at interval and have can not atomized water spray nozzle, thereby drop can not be all even throughout, thereby produce temperature deviation.Can not produce blocking problem on the nozzle of atomized water spray in addition in addition.
In device shown in Figure 11, owing to can not cool off and clean the nozzle of spraying stoste for water, thereby just have generation stoste blocking problem on the nozzle of spraying stoste.
Therefore, the objective of the invention is to solve above-mentioned the problems of the prior art, it is to address the above problem on the spray-drying part by the pressurization two-fluid spray nozzle of special construction is used for.
The invention provides a kind of prilling apparatus with atomizing drying units, comprising: a groove; One is formed on the spray-drying portion on groove top, it has a stoste and supplies with spray nozzle and provide hot-air to be dried to the device of powder with the stoste that will supply with, nozzle is the pressurization two-fluid spray nozzle, comprises one and is used for a pressurization swivel nozzle and the cylindrical body that is used to blow out high-speed gas around the setting of pressurization swivel nozzle that stoste is supplied with spraying; One be formed on the groove bottom, be used for the fluidized granulation portion of the powder fluidisation that will flow out from spray-drying portion; Wherein, to make the stoste of formation supply with spray angle be 8 °-30 ° to the structure of pressurization two-fluid spray nozzle.
Apparatus of the present invention preferably also comprise be used for fine-powder be provided to the pressurization two-fluid spray nozzle periphery on device.
Fig. 1 is the simplified schematic diagram of prilling apparatus with atomizing drying units of the present invention.
Fig. 2 is the diagrammatic cross-sectional view of employed pressurization two-fluid spray nozzle in apparatus of the present invention.
Fig. 3 is the schematic diagram of explanation particle granulation state under the situation of using apparatus of the present invention.
Fig. 4 is the schematic diagram that fine-powder is supplied with situation in explanation apparatus of the present invention.
Fig. 5 is the schematic diagram of explanation by the formed granulation shape of apparatus of the present invention.
Fig. 6 is the simplified schematic diagram of an example of prilling apparatus with atomizing drying units.
Fig. 7 is the simplified schematic diagram of another example of prilling apparatus with atomizing drying units.
Fig. 8 is the schematic diagram of the pressurization swivel nozzle before the explanation.
Fig. 9 is the device schematic diagram that the pressurization swivel nozzle has been installed in explanation.
Figure 10 is a simplified schematic diagram of installing the device of a plurality of spray nozzles in the past.
Figure 11 is the simplified schematic diagram of device that former water spray is provided with respectively with nozzle with the spraying of nozzle and stoste.
Figure 12 is the shape schematic diagram of explanation by the formed granulation body of former device.
Figure 13 is the schematic diagram of explanation by the formed granulation shape of former device.
Figure 14 is expression is the conial ring shape injection from the liquid of pressurization swivel nozzle ejection a micronize view.
Below, describe in detail and realize preferred plan of the present invention.
Fig. 1 is the simplified schematic diagram of prilling apparatus with atomizing drying units of the present invention, and Fig. 2 is the diagrammatic cross-sectional view of pressurization two-fluid spray nozzle used in apparatus of the present invention.
Feature of the present invention be by the top in a groove installing spray-drying part 1 and in groove the bottom installing in the prilling apparatus with atomizing drying units that fluidized granulation part 2 consists of, used on the stoste spray nozzle that spray-drying is used around pressurization swivel nozzle 3 and be provided with the pressurization two-fluid spray nozzle 5 that high-speed gas blows out the simple shape body 4 of usefulness.
Used in the present invention pressurization two-fluid spray nozzle is to have improved on the basis of pressurization swivel nozzle, and it possesses the performance of pressurization swivel nozzle basically.
The experiment relational expression (formula I, formula II) of spray characteristics that is applicable to the pressurization swivel nozzle is as described below:
D
D=C
1P
-0.2 0.3D
0.5 0.65μ
0.15 0.22σ
0.6 0.7Formula I
(D
D: liquid-drop diameter, P: atomisation pressure,
D: nozzle hole diameter μ: liquid viscosity,
σ: surface tension of liquid C
1: constant)
W=C
2P
0.5D
2Formula II
(W: fluid flow, P: atomisation pressure,
D: nozzle hole diameter C
2: constant)
By formula I and formula II as seen, if after atomisation pressure (fluid pressure) is determined, mean liquid-drop diameter D
DW also is determined with fluid flow, and when fluid pressure reduced, fluid flow W then reduced therewith pro rata, liquid-drop diameter D
DWith the fluid pressure P increase that is inversely proportional to, the liquid-drop diameter that makes this increase by high velocity air is micronize further.
That is, the pressurization two-fluid spray nozzle has two micronize stages, at first, be to set primary condition, and the pressure that is had with the liquid of the swivel nozzle that pressurizes itself makes micronize of stoste.At this moment above-mentioned formula I and formula II all are suitable for, and the once micronized situation that from the aperture of pressurization two-fluid spray nozzle liquid is injected into conial ring shape as shown in figure 14.
Then, will from high-speed gas blow out high-speed gas concentrated area that the front end with cylindrical body blows out impact a micronize drop on, make its secondary micronize.
Jumbo stoste by use the pressurization two-fluid spray nozzle of above-mentioned effect arranged, even also can make its spray particlesization with a nozzle.And under the situation that the feed speed of stoste, concentration, viscosity, kind etc. are changed significantly, with former the sort of nozzle, just must change parts such as inner aperture, iron core, if but used the pressurization two-fluid spray nozzle, owing to just can adjust liquid-drop diameter by the adjustment of high velocity air speed, therefore just need not change jet parts.
Pressurization two-fluid spray nozzle 5 was compared with former pressurization swivel nozzle, and spreading of spray holds under the arm narrow and droplet size distribution is broad.The nozzle of the size distribution broadness of drop is being used under the spray-dired occasion, tiny drop becomes the fine particle of abundant drying, be the high oversize grain of moisture rate of moisture state a little and thick drop becomes the surface, the fine particle number is then much more than oversize grain number.
Therefore, as shown in Figure 3, when one contact of such two kinds of particles, dry fine particle 7 will with the surface moistening a little oversize grain 6 be core, condense to cover its surperficial form, thereby promoted granulation.Because such granulation body surface is in dry status, thereby can avoid not adhering to toward the groove inside of spray-drying part under the drying regime.
And, as shown in Figure 1, because the spray angle α of pressurization two-fluid spray nozzle is narrow, again because the groove inwall of not direct collision of the powder b spray-drying of surface wettability state part, but directly arrive in the interior powder of fluidized bed, thereby can avoid powder on the metal surface of groove inside, not adhering under the drying regime.
In prilling apparatus with atomizing drying units, desirable spray angle is 5 °～15 °, relative therewith, be 8 °～30 ° with the resulting spray angle of pressurization two-fluid spray nozzle of the present invention, compare just much smaller for 40 °～90 ° with the spray angle of former pressurization swivel nozzle.
In addition, as shown in Figure 4, using cyclone separator, fine-powder that sack cleaner etc. are retrieved from waste gas and additive fine-powders 8 such as excipient, lubriation material be fed to the pressurization two-fluid spray nozzle 5 around the time, because the spray model inside of liquid is negative pressure, fine-powder 8 is inhaled into spray model inside, therefore the fine-powder 8 of drop and supply is with regard to easy the contact and granulation, the granulation body that obtains so as shown in Figure 5, having between the particle mutually tight adhesion, bulk density is big, the feature that particle density is also big.On the other hand, by the granulation body that former prilling apparatus with atomizing drying units is made, as Figure 12 and shown in Figure 13, majority gets up with a contact cohesion between particle, becomes the such shape of grape cluster, and interparticle gap is many, and bulk density and particle density are all less.
In addition, by adopting the pressurization two-fluid spray nozzle, when beginning and end, aspect the running of water,,, can prevent that also drying particulate does not adhere in groove because high velocity air is imported on the pressurization swivel nozzle outer peripheral edges even the liquid atomisation pressure descends.
Below, illustrate in greater detail the present invention by embodiment, but the present invention is not limited to these embodiment.
(embodiment 1)
Fig. 6 is the simplified schematic diagram that expression is contained in the pressurization two-fluid spray nozzle embodiment on the known prilling apparatus with atomizing drying units.In this figure, spray by pressurization two-fluid spray nozzle 5 of the present invention from the stoste that stoste feeding pipe 9 is supplied with, enter spray-drying part 1, granulation in fluidized granulation part 2, drying and cooling form goods.On the other hand, fine-powder in the waste gas is reclaimed by the 1st cyclone separator 10 and the 2nd cyclone separator 11, be returned to 13 li of tapered segments, but among the embodiment described later 3, the fine-powder of being retrieved by the 1st cyclone separator 10 is fed to then on the periphery of pressurization two-fluid spray nozzle 5.
Use the device of table 1 illustrated dimension, with above-mentioned mobile the test.What pressurization two-fluid spray nozzle 5 used is the structure that can be imported high velocity air by the SX type that Spraying System Co., Ltd. makes from the outer peripheral edges of pressurization swivel nozzle, and the employed hole of the aperture of liquid spray nozzle diameter is 0.89mm.
What the stoste that granulation is used was used is that little solution, the liquid viscosity that dextrin accounts for 40 percentage by weights is 100CPS, at the spray-drying hot blast temperature is that 200 ℃, fluidized bed granulation hot blast temperature are that 60 ℃, all waste gases temperature are to turn round under 75 ℃ the condition, the bulk density of the resulting goods mean particle diameter of its result is listed in the table 1, by table 1 as seen, even the area of fluidized granulation part 2 equates with comparative example, also can obtain maximum goods mean particle diameter.
(embodiment 2)
Use device similarly to Example 1, except the air supply pressure is taken as 0.3Kg/cm
2In addition, other all are to use the condition identical with embodiment 1 to test, and the mean particle diameter of resulting goods is 210 μ m.By this embodiment as can be known, if the air supply pressure is increased, the mean particle diameter of goods is dwindled.
(embodiment 3)
With the device identical with embodiment 1, on the basis of similarly to Example 1 condition, the fine-powder of being retrieved by the 1st cyclone separator 10 with the illustrated handle of Fig. 4 is fed to the mode on the periphery of pressurization two-fluid spray nozzle 5, the resulting mean particle diameter of comparing with the situation of not supplying with fine-powder increases to 330 μ m, and bulk density increases to 0.54g/ml.
(comparative example 1)
What use except the stoste spray nozzle is the SX type that Spraying System Co., Ltd. makes, and hole diameter is beyond the pressurization swivel nozzle of 0.89mm, with device similarly to Example 1, tests under identical condition, and it the results are shown in table 1 li.
(comparative example 2)
Except the stoste feed speed is taken as 87kg/h, the stoste atomisation pressure is taken as 42kg/cm
2In addition, to test with the same condition of comparative example 1 all, just having obtained mean particle diameter is the goods of 250 μ m, and mean particle diameter is bigger than comparative example 1, but has produced a spot of undried attachment on the tapered segment 13.
(comparative example 3)
Except the diameter aperture is taken as 0.97mm, the stoste atomisation pressure is taken as 36kg/cm
2In addition, under all identical situation of other all conditions, test, can obtain the goods that mean particle diameter is 280 μ m, but produced a large amount of undried attachments on the tapered segment 13 with comparative example.
(comparative example 4)
Fig. 7 is the simplified schematic diagram of another comparative example of expression prilling apparatus with atomizing drying units.
For generation attachment in device not, the height of straight drum part has been increased into 3000mm when using this device, but for make the moisture rate of powder low, granulation speed is little, and the bonding agent spray nozzle 15 that granulation is used is installed in 12 li of fluidized granulation parts.What bonding agent used is the aqueous solution that the dextrin identical with stoste accounts for 40 percentage by weights, and the air pressure of using the liquid adhesive agent spraying to use two-fluid spray nozzle, micronize to use is 1kg/cm
2, specific air consumption is 300NL/min, by this device, when the bonding agent feed speed is taken as 3.0kg/h, can obtain the goods that mean particle diameter is 300 μ m.On the contrary, when the bonding agent feed speed was got into 0, mean particle diameter then became 60 μ m, was not almost had the spherical goods of granulation.
In this way, obviously can not produce attachment, and can adjust particle diameter, but exist spray-drying part 1 to become big, and need carry out shortcoming such as bonding agent spraying in the inside of groove.
As mentioned above, if adopt prilling apparatus with atomizing drying units of the present invention, by using the pressurization two-fluid spray nozzle of spraying stoste ad hoc structure, even big capacity also can make its spray particlesization with a nozzle.In addition, have under the occasion that changes significantly in the feed speed of employed stoste, concentration, viscosity, kind etc., just needed to change parts such as inner aperture, iron core with former the sort of nozzle, if use pressurization two-fluid spray nozzle of the present invention, because adjustment by high velocity air speed, just can adjust liquid-drop diameter, so just need not change the part of nozzle.
In addition, because pressurization two-fluid spray nozzle of the present invention was compared with former pressurization swivel nozzle, spreading of spray is narrower, the broad particle distribution of drop is wide, become dry tiny particle by spray-drying, majority, minority has become moistening oversize grain, again since tiny drying particulate in the lip-deep cohesion of oversize grain, thereby can not be attached on the device inner surface.
By adopting the pressurization two-fluid spray nozzle; in the beginning of running, when finishing aspect the running of water; even occasion at the low-pressure atomized water spray; owing to high velocity air is imported on the outer peripheral edges of pressurization swivel nozzle; thereby also can make water droplet micronize and bone dry, thereby prevent that drying particulate does not adhere in groove.
(table 1)
| Project | (unit) | Embodiment | Comparative example | |||||
| ????1 | ????2 | ????3 | ????1 | ????2 | ????3 | ????4 | ||
| Spray nozzle | The pressurization two-fluid spray nozzle | The pressurization two-fluid spray nozzle | The pressurization two-fluid spray nozzle | The pressurization swivel nozzle | The pressurization swivel nozzle | The pressurization swivel nozzle | The pressurization swivel nozzle | |
| The spray-drying section diameter | ????mm | ????2200 | ????2200 | ????2200 | ????2200 | ????2200 | ????2200 | ????2200 |
| Spray-drying part straight drum part height | ????mm | ????800 | ????800 | ????800 | ????800 | ????800 | ????800 | ????3000 |
| Garden wimble fraction height | ????mm | ????1900 | ????1900 | ????1900 | ????1900 | ????1900 | ????1900 | ????1900 |
| The fluidized granulation section diameter | ????mm | ????350φ | ????350φ | ????350φ | ????350φ | ????350φ | ????350φ | |
| The stoste feed speed | ????kg/h | ????80 | ????80 | ????80 | ????80 | ????87 | ????80 | ????80 |
| The stoste atomisation pressure | ????kg/cm 2 | ????40 | ????40 | ????40 | ????40 | ????42 | ????36 | ????40 |
| The bonding agent feed speed | ????kg/h | ????- | ????- | ????- | ????- | ????- | ????- | ????2.4 |
| Air feed speed air supply pressure air blows out speed | ????kg/h ????kg/cm 2????m/s | ????50 ????0.2 ????110 | ????50 ????0.3 ????110 | ????50 ????0.2 ????110 | ????- ????- ????- | ????- ????- ????- | ????- ????- ????- | ????- ????- ????- |
| Nozzle spray angle | ????dcg | ????10 | ????10 | ????10 | ????75 | ????75 | ????75 | ????75 |
| Goods mean particle diameter product volume density | ????μm ????g/ml | ????300 ????0.5 | ????210 ????0.5 | ????330 ????0.54 | ????230 ????0.5 | ????250 ????0.5 | ????280 ????0.5 | ????230 ????0.46 |
| When water transport is changeed when adhering to the running of situation stoste in the groove | Do not adhere to and adhere to | Do not adhere to and adhere to | Do not adhere to and adhere to | Not being attached with water droplet adheres to | Have and be attached with water droplet on a small quantity and adhere to | Have and be attached with water droplet in a large number and adhere to | Not being attached with water droplet adheres to | |
| Remarks | Utilize cyclone separator to reclaim fine-powder | The spray nozzle hole diameter is 0.97mm φ | Use bonding agent and spray nozzle | |||||
Claims (2)
1. prilling apparatus with atomizing drying units comprises:
One groove;
One is formed on the spray-drying portion on described groove top, it has a stoste and supplies with spray nozzle and provide hot-air to be dried to the device of powder with the stoste with described supply, described nozzle is the pressurization two-fluid spray nozzle, comprises one and is used for a pressurization swivel nozzle and the cylindrical body that is used to blow out high-speed gas around the setting of pressurization swivel nozzle that stoste is supplied with spraying;
One be formed on described groove bottom, be used for the fluidized granulation portion of the powder fluidisation that will flow out from described spray-drying portion.
It is characterized in that it is 8 °-30 ° that the structure of described pressurization two-fluid spray nozzle makes the stoste of formation supply with spray angle.
2. prilling apparatus with atomizing drying units according to claim 1 is characterized in that, described device also comprise be used for fine-powder be provided to the pressurization two-fluid spray nozzle periphery on device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92110117A CN1035238C (en) | 1992-08-20 | 1992-08-20 | Prilling apparatus with atomizing drying units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92110117A CN1035238C (en) | 1992-08-20 | 1992-08-20 | Prilling apparatus with atomizing drying units |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1082457A CN1082457A (en) | 1994-02-23 |
| CN1035238C true CN1035238C (en) | 1997-06-25 |
Family
ID=4944617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92110117A Expired - Lifetime CN1035238C (en) | 1992-08-20 | 1992-08-20 | Prilling apparatus with atomizing drying units |
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| Country | Link |
|---|---|
| CN (1) | CN1035238C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341924C (en) * | 2000-05-19 | 2007-10-10 | 三菱丽阳株式会社 | Process for producing acrylic polymer |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110021825A1 (en) * | 2009-07-21 | 2011-01-27 | Ge Healthcare As | Process for isolating iodixanol from an aqueous solution |
| JP6583266B2 (en) * | 2014-04-28 | 2019-10-02 | 日本ゼオン株式会社 | Method for producing composite particle for electrochemical device electrode |
| CN105217662B (en) * | 2014-06-13 | 2017-08-25 | 南通江海港建设工程有限公司 | A kind of process of slurry-spraying pelletizing legal system edible magnesium chloride |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3609350A1 (en) * | 1985-08-29 | 1987-03-05 | Inst Getreideverarbeitung | NOZZLE FOR SPRAYING LIQUIDS |
| EP0334982A1 (en) * | 1988-03-30 | 1989-10-04 | Ohkawara Kakohki Co., Ltd. | Spray-drying granulation apparatus |
-
1992
- 1992-08-20 CN CN92110117A patent/CN1035238C/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3609350A1 (en) * | 1985-08-29 | 1987-03-05 | Inst Getreideverarbeitung | NOZZLE FOR SPRAYING LIQUIDS |
| EP0334982A1 (en) * | 1988-03-30 | 1989-10-04 | Ohkawara Kakohki Co., Ltd. | Spray-drying granulation apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341924C (en) * | 2000-05-19 | 2007-10-10 | 三菱丽阳株式会社 | Process for producing acrylic polymer |
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| Publication number | Publication date |
|---|---|
| CN1082457A (en) | 1994-02-23 |
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| C14 | Grant of patent or utility model | ||
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| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
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Expiration termination date: 20120820 Granted publication date: 19970625 |